Neloth at Tel Mithryn sends the player on this quest. He has located another of Hermaus Mora's Black Books in White Ridge Barrow and wants it brought to him so he can read it.

The first room after entering the Barrow contains one chest and two dead Reavers. Activate the Door Bar and open the Wooden Door. Defeat the enemies as and when they appear. White Ridge barrow is full of difefrent types of Spiders, as well as occasional Bandit Marauders. Follow the passageway. It makes no difference whether one goes left or right when the passage splits, as both ways lead to a stairway down into the Barrow proper.

New in this Barrow are red sacs out of which Jumping Flame Spiders and and Exploding Flame Spiders hatch and attack. This is the same as how Chaurus Hunters hatch in Dawnguard.

At the bottom of the stairway is a large room with two Ruby Geodes and some urns. Activate the chain at the end of the room to lower a bridge over half of the next room. Go down the stairway to the left and defeat the Bandit Marauder at the bottom. Head up the stairs on the left, defeat the Flaming Spider that appears, and open the door. Defeat the spiders and a Draugr Deathlord. Search the Deathlord and chests for loot.

Head back out of the room and down the stairs into the lower level of the room. Follow the room around the corner to the right. Defeat the Jumping Flame Spiders and the Bandit Marauder. Continue down a corridor at the end of the room.

Along the way is a small chamber with two Ruby Geodes and two Heart Stone Deposits. Continue down the corridor. Open the door to White Ridge Sanctum. Continue on to a Wooden Door. Activate the Door bar and open the Wooden Door. Cross the chasm in the middle of the room. Defeat the Bandit Marauders, the Spiders and Merilar Rendis. Search the bodies. On Merilar Rendis is a key and a diary. Take both and read the diary. It provides some clue as to what is being done inside the Barrow.

Continue through the iron door at the end of the room. The passage leads to a pool of water which is under a grill in the main room. Search the chest for loot. Continue further down the passage to a river which runs the length of the room. Along this river are four Ruby Geodes which can be mined.

Return to the main room. Cross the room and head up the wooden ramps. Defeat (a lot of) spiders. Three Ruby Geodes can be mined in this room. In the far corner of the room, under a ramp/walkway, is a small room. Search this for minor loot.

Return to the room and head up the ramp. At the top, on the right, is a caged room. Open the cage with the key taken from Merilar Rendis' body. Inside the cage is the body of Servos Rendos. Search the body and read the journal. On the table are the Spider Experiment Notes and an Imbuing Apparatus. Read the Notes and find out what the Imbueing Apparatus is used for. Also on the table are ingredients for making Spiders: rubies, spider pods and salt piles.

The Imbuing Apparatus has two parts:

Imbuing Chamber: ingredients are put in here

Imbuing switch: activate to make Spiders

The Notes include the following recipes:

Jumping Flame Spider: Ruby + Damaged Pod

Exploding Flame Spider: Ruby + Damaged Pod + Salt Pile

Flame Cloaked spider: Ruby + Albino Pod + Salt Pile

Exit the cage and follow the passageway. on the left is a ladder exit to Solsteim. Ignore this for now and continue along the passageway. This passage is actually a dead end but there are various types of ore to be picked up, as well as a knapsack to be searched. Also in this passage are two Ruby Geodes.

Return to the cage and head down the ramp. Cross the room to the gate. Open the gate and hack the spiderwebs away. Ignore the wooden door on the left and follow the corridor to the chest at the end. Return to the wooden door. Activate the door bar, open the door and defeat the abndit mArauders and Spiders inside the room.

Head back down the ramps, across the chasm and up the stairs on the other side. Chop down the spiderwebs and proceed. Open the iron door and follow the passage to a large chamber. In this chamber can be found the Black Book; The Sallow Regent, a word wall with the shout Cyclone: Unleash, a chest and a Dragon Priest named Dukaan.